Queen's gambit accepted

You've surely tried the queen's gambit at least once.It is usually considered bad for BLACK to retain the pawn in the Accepted variation of the QD. But I have noticed something!

1.d4 d5 2.c4 dxc4 3.Nc3 Nc6 4.e3 Na5!

I tried everything I could as White to get back my gambitted pawn, in vain. Black also has a solid pawn structure with later moves like c6, a6, b5, e6, Nf6.

And if you think of 5.Qa4, c6 6.Bxc4 b5! 7. Nxb5( 7.Bxb5 cxb5) Nxc4 8.Qxc4 cxb5 9.Qxb5+ Bd7!

If you can find a way of refuting this kind of variation, please reply.

 5 Qa4 c6 6 Bd2 !

Finding a novelty on move 5 that completely changes the nature of one of the most used openings there is sure would be something.

I think that 3.Nc3 is already a move that allows black to keep the pawn, with 3...a6, although white maybe gets fast development. This scores only 34% for white in the 95 games in my database, which is absolutely horrible. 3.e3, 3.Nf3 and 3.e4 are much more common.

Of 8367 QGA's in my database, only 15 reached the position after 3.Nc3?! Nc6?!. However, it was also reached 400 times through the Chigorin move order (1.d4 d5 2.c4 Nc6 3.Nc3 dxc4) So we're not talking about a main line here, but it is known.

Both 4.Nf3 and 4.d5 score better now than 4.e3, but that's still decent.

About 4...Na5... well, the knight is just out in the woods there. Even if it doesn't immediately fail tactically, why put a knight on a5?

I found one game with it:

And yet, it's not impossible.  The 7...Qe8 that revolutionized the Leningrad Dutch was only discovered in the early 1980s.  The Sicilian Sveshnikov move order (2...Nc6 & 5...e5) was considered a rather poor continuation until its namesake found resources that turned it into a major weapon in the 1970s; now it's one of the primary variations of the Sicilian.

It's true that many of the opening ideas posted here get busted immediately, but I'd hate for that to stop people from dreaming and trying!

While I agree with what you are saying Spiffe, I doubt a 1300ish player should spend his time looking for theoretical noveltys during his study time.

Not to put too fine a point on it, but his rating is higher than yours.  Besides, it's not like he's soliciting advice on improving his overall game -- we're in an openings forum, and he's talking about an interesting opening idea.  If we were all forbidden from ever glancing up from our Tactics Trainer until we'd achieved our IM norms, chess would be a lot less fun.

Ashkwinav isn't too far off the mark. I play a similar variation of the QGA myself after White plays both Nc3 and a4, as the threat of Qa4+ is gone.

But as Scarblac previously said, 3. Nc3 doesn't test the QGA as much as the Classical variation (3. Nf3) or the Center variaiton (3. e4), so you shouldn't expect to be dealing with these Nc3 sidelines too often.

My rating has nothing to do with it, it's not a great idea to spend lots of time on opening preparation at 1300ish. (He has only done 3 games though, so there really isn't lots to go on.) There is more to study than tactics trainer though, traps (not that I advocate that you go for them in games, they do however in a crude manner show some ideas and mating nets), aswell as pawn formations, bishop vs knights, endgame, board vision and alot other things. And it's pretty clear that he spends alot of time on openings, seeing as how he has created around 10 threads about openings, all with similiar ideas like this one.

I'm not saying he should stop doing it, if it makes him happy, there are just better way to spend his time, if improvement is his game.

I don't think Black should play 5...Bg4 in the above posted game.Black is playing solidly; he's not attacking.I think 5...e6 would be better.After some more moves, the position should be favourable for black:

Sorry I forgot about the other 2 moves in my diagram. BLACK should also play b5 and a6.

I dont blame Ashkwinav
When I first started learning chess, openings facinated me a lot, and I spent months behind just QGA.

Regarding your 4...Na5, I agree with Reb's line (from database):

5.Qa4+ c6 6.Bd2

    6...b5 7.Nxb5! cxb5 8.Qxb5+ Bd7 9.Qxa5

    6...e6 7.Bxc4

'Hope this answers your question.